Bung.



J. P. BAUMG-ARTNER.

HUNG.

APPLIOATIOH FILED AUG. 26, 1902.

2 BHEETS-SHEET 1.

aimed doc x w n Witnesses YAT'EN'IED JULY 43;, 1905 (1'. P. BAUMGARTNER.

HUNG.

APPLIOATION FILED AUG. 26, 1902.

9 aid 100M012 Utter/"@1 69.

3nd. 794L072.

tljnirt; starts Patented July t, 1905..

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SPECIFICATION forming part of Letters Patent No. 794,072, dated July 4, 1905.

Application filed August sfilifbl 1 .To (ii/J, 1071,0171 it 'n'my concern/.-

lie it known that :l, Josnru P. linuiuenu'r- NICK, aeitizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Improvement in Brings, of which the following is a specification.

My invention consists of an improved bung and bunging apparatus, as will be hereinafter fully described and claimed.

Figure .1 represents a central vertical section of a bung provided with an inlet-valve constructed in accordance with my invention. Fig. 2 represents a detailed view of the inletvalve in another position. Fig. 3 represents a perspective view of a spring-ring employed to support a gasket. Fig. at represents a partial side elevation and section of the gasket. Fig. 5 represents a central section of an outletvalve adapted to be employed in connection with my bung. Fig. 6 represents a top plan of a casing supporting the valve. Fig. 7 represents a top plan of the bushing in detail. Fig. 8 represents a section thereof, taken on the line a: w of Fig. 7. Fig. 9 represents a bottom plan of said bushing. Fig. 10 represents a side elevation of a casing shown in Fig. 6. Fig. 11 represents a sectional view illustrating the manner in which an outlet or inlet pipe is coupled with said casing. Fig. 12 represents a side elevation of the pipe or elbow shown in Fig. 11. Figs. 13 and 14: representperspective views of tools employed in connection with my invention.

Faimilar numerals of reference indicate corresponding parts in the figures.

Referring to the drawings, Figs. 1 to 10 :illustrate my improved bushing and the parts employed in connection therewith to support an inlet or outlet valve, 1 designating the barrel, and 2 the said bushing, the latter being screw-tlweaded externally, as at 3, to be secured in the barrel and having the usual flange a for obvious reasons. The outer end of the seats 8.

casing or bung 10 employed in connection with either the inlet or outlet valve, Figs. 1, 5, and 1.0, has a body portion 11, having exteriorl y near its outer end a groove 12, formed by the parallel ledges to receive the gasket 13, a wring-ring 14:, Fig. 3, being situated on the inside of said gasket to support the same. Said gasket is provided with a shouldcr 15, that rests upon the shoulder 5 of the bushing 2, the lower portion 16 of said gasket conveniently fitting within the bushing below said shoulder The upper surface of the gasket is formed, as shown in the drawings, as a truncated cone having upper annular surface 15' transverse to the axis. The exact truncated form shown in Fig. 4c is not necessary, as it may be otherwise formed, as with a curved surface, such as is shown in Fig. 1, between the outer edge of the shoulder .15 and the face 15. With respect to a plane passing through the annulus 15 or with the surface of the bung pressing upon it the surface between 15 and 15 is l'lared. Near the inner end of the casing are the exterior projections 17, extending circumferentially around the casing and having diametrically oppositely located lugs 18 and stops 1%). The projections 17 are so arranged with relation to the gasket 13 and the shoulder 5 and lugs 6 of the bushing that when the inclined ends 20 of said projection 17 engage the inclined faces 7 of the lugs 6 the shoulder on the gasket will engage the shoulder on the bushing, so that as the casing is turned it will cause the inclined faces 7 and 20 to ride upon each other and said gasket is depressed, and when the lugs 18 enter the seats 8 the said parts will be locked in this position, it being noted that the steps 19 prevent :further turning of the casin The under surface of the upper projecting ledge upon the bung, which engages with the gasket and compresses it with downward movement of the bung, is also shown in the form of an annulus 12', and the outer surface of this cylindrical ledge is flared relatively to a plane passing through this annulus or to the gasket. It is evident that the supporting-wall 5 and the annulus of initial engagement of the bung with the gasket in its downward or inward. movement are out of line, and, indeed, as herein illustrated, the entire upper dimensions of the bung are smaller than the inner limiting surface of the supporting-wall 5. Compression of the gasket by the bung will therefore result in a rolling of the parts of the gasket inwardly upon the supporting-wall, each part throughout its circumference moving in the plane of its radius, resulting in an entire inner rolling of the outer surface of the gasket upon the supporting-wall. Inasmuch as the gasket and bung are relatively flared, there is also an increase of contact between the two at this point, due to additional parts of the relatively flared surfaces coming into successive contact without ordinarily in any way reducing their original areas of annular contact heretofore called their areas of initial contact, by which last is not meant the inner cylindrical contact of the gasket with the ring or bung if the ring be omitted, but the contacting surfaces transverse to the axis. The casing is provided with a partition 21 at its inner end and the partition 22 near its outer end, said partitions being provided with concentric screw-threaded openings 23 and 24, respectively. The said openings 23 and 24 are adapted to receive the plug 25, having an opening 26 extending longitudinally from one end thereof and communicating with the transverse opening 27 near its outer end, the latter end being reduced, while the former end is screw-threaded. Around the reduced end of the plugs is an elastic tube 28, preferably of rubber, which acts as a valve, being held in place upon the tube by means of the protuberance 29. When employed as an inwardly-opening check-valve, the parts are arranged in the position shown in Fig. 1, and when as an outwardly-opening check-valve in the position shown in Fig.5, it being noted from Fig. 2 that when the pressure is in the direction indicated'by the arrows the tubing 28 will be raised to allow the admission or escape of air or gas; but when the pressure is in the opposite direction the tube 28 will be held tightly over the ends of the transverse openings 27, as shown in Figs. 1 and 5. The outer end of the casing is provided with lugs 30, by means of which it can be engaged by a suitable tool to be turned in inserting and removing it from the bushing 2.

The arrangement of valves above described can be used wherever found convenient, and in connection with the inwardly opening valve 1 have shown an arrangement in Figs. 11 and 12 whereby air or gas, for instance, can be supplied to an ale or beer barrel in dispensing the same. This device consists of a coupling 31, with the end 32 of which the supply-pipe may be fastened, while the other end of the coupling is provided with a washer 33, suitably retained thereon, while below the washer the coupling is provided with the projections 34, forming bayonet-joints, by means of which it can be engaged with the lugs of the casing to hold the coupling in place and by turning the same to depress the washer 33 to form a tight joint.

The tool shown in Fig. 13 is employed for inserting and removing the bushing 2, although in said figure it is shown on a reduced scale. Said tool is provided with a shank 59, having an opening through its upper end through which a bar may be passed, while the lower end of the shank is provided with a head 61, that fits within the bushing, recesses 62 in said head receiving the lugs 6 of the bushing. The position of said tool and the manner in which it engages said lugs is shown in dotted lines in Fig. 7.

In Fig. 14E I have shown a tool by means of which the casing 10 can be inserted or removed from the bushing, it being understood that said tool is shown on a reduced scale as compared with the other figures. This tool has a shank 63, a handle 64:, and a head 65, the latter being provided with a notch 66 to receive the lugs 30 at the outer end of the casing, so that by turning the tool to the left the ledges 67 are moved beneath and engage the lugs 30 to lift the casing from the bushing.

I claim a special advantage in the specific construction of the gasket 13, and particularly the flange 15 thereof. I make the upper face of this flange inclined or oblique, so that it extends downwardly from the outer portion of the outwardly-extending rim at the upper end of the casing to the shoulder 5 of the bushing, or, in other words, the upper portion of the gasket is in the shape of a frustum of a cone. Then when the casing 10 compresses the gasket the shape of this flange or shoulder 15 is such that it is forcibly compressed between the rim or the casing and the shoulder 5 of the bushing. I also claim an especial advantage in the use of the ring 14, as this ring allows the gasket to rotate relative to the rotatable casing. Its outward spring normally holds it away from the inner wall of the groove in which it lies, reducing friction at this point, and its presence prevents the friction incident to contact of rubber and metal, most noticeable in case of deterioration of the surface of the rubber. Both in looking and releasing the gasket may remain substantially stationary in the bushing as regards rotation. If the gasket, which is usually rubber, was in contact with the outer face of the casing, it is obvious that in time it would adhere to said casing and also to the bushing and that when the casing was turned in locking and unlocking the gasket would buckle. By supporting the gasket by means of the ring 1 L should the gasket adhere to the bushing the casing can turneasily and freely within the ring, and thus prevent buckling.

It is understood that although I have termed the part 10 a casing, yet when provided with the valve, as shown in Figs. 1 and 5, it

teams performs the function of a bung, and I therefore employ the term casing for convenience of description.

Having thus described my invention, what l claim as new, and desire to secure by Letters Patent, is-

1. The combination with a bushing having an outwardly-facing shoulder at its outer end, and lugs at its inner end, a casing having a groove adapted to extend below said shoulder, a gasket retained in said groove having a shoulder adapted to engage the shoulder of said casing, and lugs on said casing adapted to engage said lugs on the bushing, a spring supporting-ring for said gasket held in said groove and pressing outwardly against the inner face of said gasket, and inwardly-extending lugs at the outer end of the casing, the engagement between the lugs at the inner end of the bushing and easing serving to compress the gasket, the latter being free to rotate relatively to the casing.

2. The combination with a bushing having an outwardly-facing shoulder at its outer end, and lugs at its inner end having depressed seats radially disposed on their inner sides, of a casing having an annular groove. a gasket rotatably held in said groove and having a shoulder to engage the shoulder of the busl ing, means separating the gasket radially from the casing. and lugs on said casing adapted to engage said lugs of the bushing, the lugs of said casing having projections adapted to enter said seats.

The combination with a bushing having a shoulder, of a casing having an "exterior groove near its outer end, a spring-ring within said groove, a gasket rotatably mounted upon the exterior of said casing and supported by said spring-ring and adapted to engage said shoulder, and means for securing said casing within the bushing and for compressing said gasket.

l. The combination with a bushing, 01. a casing, means for securing the same within said bushing, an interposed gasket rotatably held exteriorly of the casing, a spring supporting-ring interposed between the casing and gasket, and a valve carried by said casing.

5. The combination with a bushing, a cas ing, a plurality of partitions in the casing, and means for securing said casing within the bushing, of a valve mounted in said casing and adapted to be reverse] yplaced in different partitions.

6. in an apparatus of the kind specified, in combination with the bushing having inwardlyprojecting lugs, having their inner sides provided with inclined tacos, and with depressed seats oi a removable casing, a gasket, means between the gasket and casing for mounting the former upon the latter, said gasket adapted to engage a shoulder at the outer end of said bushing, projections adapted to engage said lugs, said projections being provided with lugs to enter said depressed seats in said first-mentioned lugs, and with stops to engage the ends of said iirst-mentioned lugs.

7. in an apparatus of the class specified, a casing having a circumferential groove, a 1'0 tatable ring within said groove, and a gasket located radially outside of said ring.

8. In combination with a bushing having a shoulder, and a movable casing situated within said bushing adapted to extend inwardly beyond said shoulder and havinga projecting ledge, a gasket rotatably supported on said casing and having a shoulder or rim having an outwardly-tapering outer face to be compressed between the projecting ledge upon said casing and the shoulder of the bushing and a spring supporting-ring for said gasket.

9. in combination with a bushing having an outwardlyfacing shoulder, a movable casing situated therein, and a gasket rotatably supported on said casing and situated between said casing and the bushing and a spring supporting-ring for said gasket, said gasket having a portion extending inward beyond said shoulder and a head or flange approximating a 'i rustum of a cone and situated between the rim upon said casing and the shoulder of said. bushing.

10. in an apparatus of the kind speeiiied,'a casing, a gasket surrounding the same, and o'l'itwardly-pressing spring means between the casing and gasket.

11. in an apparatus of the kind specified, a casing, a gasket surrounding the same, and a spring-ring situated between said casing and gasket and rotatable upon said casing.

12. in an apparatus of the kind specilied, a casing having a circumferential groove, a 1'0- tatable spring ring situated within said groove, and a gasket mounted upon said ring.

lln a bung of the character described, the combination of a member presenting an annular support, a second member presenting an annular surface of less external diameter than the interior of the support, means for causing relative axial movement of the two members, and a gasket having contact with the annuli of both members and extending axially beyond one annulus and between the members.

JOSEPH P. BAUlilGARTNEH. /Vitnesses:

JOHN A. vVinpnnsimm, HARRY Conn KENNEDY, 

